Author Topic: ANY DOUBTS HERE!!!  (Read 34915 times)

nid404

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Re: ANY DOUBTS HERE!!!
« Reply #135 on: May 11, 2010, 04:39:00 am »
That's a rule dear. Reaction with hot conc KMNO4 gives CO2, water, and acid. In this case dicarboxylic acid since there is also  an OH group.

You need to learn a few organic stuff the way it comes. Why? maybe in A2  :-\  I always ask questions like these. It's good to..but teachers don't like it :-\

Offline Saladin

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Re: ANY DOUBTS HERE!!!
« Reply #136 on: May 11, 2010, 04:41:52 am »
That's a rule dear. Reaction with hot conc KMNO4 gives CO2, water, and acid. In this case dicarboxylic acid since there is also  an OH group.

You need to learn a few organic stuff the way it comes. Why? maybe in A2  :-\  I always ask questions like these. It's good to..but teachers don't like it :-\

My sister often comes to me, why does acid + metal carbonate form salt +water + CO2. And I'm like, cuz it simply does, I can explain, but believe me, that wont make her happy. She will want to know more, and then get completely confused abt it!

Offline Summer :]

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Re: ANY DOUBTS HERE!!!
« Reply #137 on: May 11, 2010, 04:48:06 am »
My sister often comes to me, why does acid + metal carbonate form salt +water + CO2. And I'm like, cuz it simply does, I can explain, but believe me, that wont make her happy. She will want to know more, and then get completely confused abt it!

Haha thats exactly how my sister thinks! and when she asks me further questions, she confuses me along with her
so thats i basically avoid her questions! or else ill get a U in chemistry

nid404

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Re: ANY DOUBTS HERE!!!
« Reply #138 on: May 11, 2010, 04:50:39 am »
And I appreciate people who think like that. I always look for an explanation to things. I am very disappointed when I don't get my answer. I try every possible thing to find out. Use the net, look through books, ask people...

Maybe there's still some time before you know the "why" and "how"

Offline Summer :]

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Re: ANY DOUBTS HERE!!!
« Reply #139 on: May 11, 2010, 06:13:23 am »
And I appreciate people who think like that. I always look for an explanation to things. I am very disappointed when I don't get my answer. I try every possible thing to find out. Use the net, look through books, ask people...

Maybe there's still some time before you know the "why" and "how"

that's true, i always think why does it happen as well..but at times it's best to avoid this question or else you'll be doomed like my sister.
sometimes there's the answer but its not required for our level of education, you'll learn it later in higher levels (thats what my teacher says  ::) )

nid404

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Re: ANY DOUBTS HERE!!!
« Reply #140 on: May 11, 2010, 06:14:58 am »
Hahaha....ditto...exactly what my teachers say...sometimes I wonder whether they know it or not

Offline ruby92

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Re: ANY DOUBTS HERE!!!
« Reply #141 on: May 11, 2010, 11:38:50 am »
That's a rule dear. Reaction with hot conc KMNO4 gives CO2, water, and acid. In this case dicarboxylic acid since there is also  an OH group.

You need to learn a few organic stuff the way it comes. Why? maybe in A2  :-\  I always ask questions like these. It's good to..but teachers don't like it :-\
lol. Thank You :)

Offline cashem'up

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Re: ANY DOUBTS HERE!!!
« Reply #142 on: May 11, 2010, 01:45:44 pm »
And I appreciate people who think like that. I always look for an explanation to things. I am very disappointed when I don't get my answer. I try every possible thing to find out. Use the net, look through books, ask people...

Maybe there's still some time before you know the "why" and "how"

haha ;D ;D ;D totally agree so many ppl feel the same thing here....me too ...... u go to the teachers and ask dem WHY bcos u want to know wats the reason........the other day i still rememebr iasked my bio teacher how does the nucleus respond to detection of antigens on cell surface membrane.....she was like it happens... and i continued askin her like does the message reach automatically how does it instigate the nucleus(this sounds stupid... :P but realy i like to understand things rather than muggin it up.....lol ) 
 ;D ;D ;D


Offline cashem'up

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Re: ANY DOUBTS HERE!!!
« Reply #143 on: May 11, 2010, 01:49:38 pm »
Posted by: nid404
Insert Quote
that is what gets converted to CO2H

the extreme left Carbon forms CO2 and the middle one forms CO2H.

Gettin it

sort of yes.but why does it form CO2?



i can give u slight  more clarity on how it happens..... see basically the double bond breaks.... now mn04 is an oxidising agent so the CH2 is oxidised to CO2 now
for the right part if the carbon in compound is primary a COOH will form on full oxidation and aldehyde on partial
whereas if C is secondary ketone will form

hope it helped..... ;D ;D ;D

Offline ruby92

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Re: ANY DOUBTS HERE!!!
« Reply #144 on: May 11, 2010, 05:59:58 pm »
yes definitely.
Thanks a lot :)

Offline ruby92

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Re: ANY DOUBTS HERE!!!
« Reply #145 on: May 11, 2010, 06:01:40 pm »
Bio related question.
in an experiment to find the effect of temperature on rate of breakdown of H2O2 by catalase.
what can we take as the control?

Offline cashem'up

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Re: ANY DOUBTS HERE!!!
« Reply #146 on: May 11, 2010, 08:28:54 pm »
yes definitely.
Thanks a lot :)

u welcome.... ;D ;D ;D

Offline cashem'up

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Re: ANY DOUBTS HERE!!!
« Reply #147 on: May 11, 2010, 08:33:58 pm »
Bio related question.
in an experiment to find the effect of temperature on rate of breakdown of H2O2 by catalase.
what can we take as the control?

 i am not sure but u could boil the catalase and then use it to prove that breakdown is ocuring due to catalase and not any other factors...........

Offline pjb13

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Re: ANY DOUBTS HERE!!!
« Reply #148 on: May 12, 2010, 03:10:07 am »
Economics:

What is GDP/output gap...the diff between potential GDP and nominal or real GDP?

Need help abt the characteristics of the following regarding ....normal/abnormal profits in the short or long term, where does equilibrium occur on the graph in short term/long term, the position on the graph where profit maximization occurs if it does(MC=MR etc), when is it necessary to make a normal profit (in short/long run) :

1)Monopoly
2)Mono Competition
3)Perfect Competition
4)Oligopoly

Offline Summer :]

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Re: ANY DOUBTS HERE!!!
« Reply #149 on: May 12, 2010, 05:37:46 pm »
Hahaha....ditto...exactly what my teachers say...sometimes I wonder whether they know it or not

i bet they dont :p (hi 5)! haha